Guide for hand-held electric saw

ABSTRACT

A guide formed with a guide face elongated parallel to a line of proposed cut, and provided with a squaring member projecting from said guide transversely to said face to engage a surface of a workpiece. A saw cut indicator projecting transversely to said guide face in the direction opposite from said squaring member, and terminating in a saw cut indicating edge predeterminedly spaced from and parallel to said guide face, said saw cut indicator being made of a material of some permanence, but readily cut by a saw blade, so that on an initial cut using a specific electric saw, the blade will permanently establish the saw cut indicator edge for that particular saw. Screws threadedly received in said squaring member and adjustable to establish angular divergency between said squaring member and the surface of a workpiece engaged thereby and consequently a corresponding divergency of a saw cut.

United States Patent 1191 Hayes Aug. 14, 1973 GUIDE FOR HAND-HELDELECTRIC SAW [76] Inventor: George W. Hayes, 15032 Regina,

Allen Park, Mich. 48101 [22] Filed: June 7, 1971 [21] Appl. No.: 150,295

[56] References Cited UNITED STATES PATENTS 5/1934 McKay 143/66 5/1967Kwiatkowski 143/6 G Primary Examiner-Louis R. Prince AssistantExaminer-Jon W. Henry Attorney-Allan J. Murray [5 7] ABSTRACT A guideformed with a guide face elongated parallel to a line of proposed cut,and provided with a squaring member projecting from said guidetransversely to said face to engage a surface of a workpiece. A saw cutindicator projecting transversely to said guide face in the directionopposite from said squaring member, and terminating in a saw cutindicating edge predeterminedly spaced from and parallel to said guideface, said saw cut indicator being made of a material of somepermanence, but readily cut by a saw blade, so that on an initial cutusing a specific electric saw, the blade will permanently establish thesaw cut indicator edge for that particular saw. Screws threadedlyreceived in said squaring member and adjustable to establish angulardivergency between said squaring member and the surface of a workpieceengaged thereby and consequently a corresponding divergency of a sawcut.

1 Claim, 3 Drawing Figures /e--" l Y 1 1 "1 l ll 7 I11" I l -l' 1 I ll/i' i l :9 r*- :1 I L- Z. A i l GUIDE FOR HAND-HELD ELECTRIC SAW Thereare no other applications pending by the inventor with respect to thisinvention, and no patents issued thereon.

FIELD OF INVENTION Invention is believed to lie in, and the objects ofthe invention are, the provision of a saw guide assembly having a sawcut indicator member which may be readily cut by the blade of a hand sawto permanently establish the spacing for a particular saw, of the sawcut indicator edge parallel to a guide face elongated in the directionof cut on a guide member.

A further object of the invention is to provide a squaring elementthreadedly receiving screws, or the like, to afford flexibility in theuse of the device by establishing, where desired, angular divergenciesbetween the squaring element and the surface of a workpiece engaged bysaid squaring element.

Still a further object is to provide an inexpensive, light-weight sawguide which may be held by one hand while a saw to be guided thereby ismanipulated with the other hand of the user.

These and various other objects are attained by the constructionhereinafter described and illustrated in the accompanying drawing,wherein:

FIG. I is a top plan view of the improved saw guide assembly.

FIG. 2 is a side elevational view of said saw guide assembly taken online 22 of FIG. 1.

FIG. 3 is a vertical, elevational, sectional view taken on line 3-3 ofFIG. 2.

In these views the reference character 1 designates a guide member,having a saw guiding face 2 elongated parallel to the line of proposedsaw cut. Projecting integrally from the guide member 1 is a squaringelement, comprising a first flange 3, joined by a horizontal span 4 to asecond flange 5, spaced fom said first flange. .It may be desired toform notches 6 at the junction of the squaring member with the saw guideto facilitate formation of the flanges. One or more screws 7 arethreadedly received in the second flange 5, and the first flange 3 isapertured as at 8 to pass the end portions of said screws.

A saw cut indicator 9 has one end portion secured to and beneath theguide member 1, in any conventional manner, as by rivets 10. Whererivets are used it is desirable that the bottom faces thereof be flushwith the under surface of the saw cut indicator. Shown in dash line inFIGS. 1 and 2 is a proposed cutoff portion 11 of the saw cut indicator,the reason for which is explained hereinafter.

An electrical circular hand-guided saw is indicated in phantom line, thesaw motor being designated as 12, and provided with a handle 13. Theedge of a foot which supports the saw and motor as it moves over aworkpiece bears against the saw guide face 1 to direct the saw in arectilinear cut. The foot 14 is formed with an elongated rectangularslot 15 through which the circular saw blade 16 is enabled to engage aworkpiece 17 for purposes of making a cut.

Much time can be saved, and great accuracy ensured, by use of the sawcut indicator 9. It is proposed in manufacture of the assembly toprovide excess length on said saw cut indicator so that the saw withwhich the guide is intended to be used may, on its first pass, cut thesaw guide indicator, and leave an indicator edge 9a. Thus, thereafter,whenever that particular saw is used with the saw guide indicator, itcan be predetermined where the saw cut will be made relative to the sawguide face. Where a line or mark is made on a workpiece, as is commonpractice, the saw cut indicator may be accurately positioned on theworkpiece relative to such line, with assurance that the edge of the sawcut indicator 9 will then coincide with the rear face of the saw blade,thus establishing the precise line of cutoff on a workpiece. It isproposed to employ a material substantially thinner than drawn to affordas nearly as possible a uniform under surface to the assembly. Thethickness shown for the indicator 9 is exaggerated for visualconvenience.

It is, or course, proposed to make the saw cut indicator of somematerial such as aluminum, of a suitable durability, which may, however,be readily cut by a saw blade without damage to the blade.

What I claim is:

l. A guide assembly for a held-held electric saw, including,

a saw guide to surmount a workpiece to be cut,

a rectilinear guide face elongated on said guide,

a squaring element projecting in one direction from said guidetransversely to said guide face to engage the surface of a workpiece andposition said guide face for a desired cut,

said squaring element including a first flange engageable with a surfaceof a workpiece,

a second flange parallel to and spaced from said first flange,

one or more screws threadedly received in said second flange forrotatable adjustment therein and having terminal engagement with thesurface of a workpiece to establish angular divergency between saidfirst flange and such surface of a workpiece, and said first flangebeing adapted to afford said terminal engagement.

t i W '1 a

1. A guide assembly for a held-held electric saw, including, a saw guideto surmount a workpiece to be cut, a rectilinear guide face elongated onsaid guide, a squaring element projecting in one direction from saidguide transversely to said guide face to engage the surface of aworkpiece and position said guide face for a desired cut, said squaringelement including a first flange engageable with a surface of aworkpiece, a second flange parallel to and spaced from said firstflange, one or more screws threadedly received in said second flange forrotatable adjustment therein and having terminal engagement with thesurface of a workpiece to establish angular divergency between saidfirst flange and such surface of a workpiece, and said first flangebeing adapted to afford said terminal engagement.